An ideal spring is fixed at one end. A variable force F pulls on the spring. When the magnitude of F reaches a value of 49.8 N, the spring is stretched by 18.1 cm from its equilibrium length. Calculate the additional work required by F to stretch the spring by an additional 10.9 cm from that position.

W = 7.06 J

Explanation:

From the given information the spring constant 'k' can be calculated using the Hooke's Law.

Now, using this spring constant the additional work required by F to stretch the spring can be found.

The work energy theorem tells us that the work done on the spring is equal to the change in the energy. Therefore,

trig 15.3 cos

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle